Clean the seafood such as squid and shrimp thoroughly.
Cut the vegetables (onion, bell pepper, etc.) into bite-sized pieces.
Heat olive oil in a pan and stir-fry the seafood.
Add the vegetables and stir-fry together.
Add soy sauce, chili powder, and other seasonings, then continue stir-frying.
Once everything is cooked through, sprinkle sesame seeds on top to finish.